import '@/utils/sso'
import { getConfig } from '@/config'
import NProgress from '@/utils/progress'
import { transformI18n } from '@/plugins/i18n'
import { sessionKey, type DataInfo } from '@/utils/auth'
import { useMultiTagsStoreHook } from '@/store/modules/multiTags'
import { usePermissionStoreHook } from '@/store/modules/permission'
import {
  Router,
  createRouter,
  RouteRecordRaw,
  RouteComponent
} from 'vue-router'
import {
  ascending,
  getTopMenu,
  initRouter,
  isOneOfArray,
  getHistoryMode,
  findRouteByPath,
  handleAliveRoute,
  formatTwoStageRoutes,
  formatFlatteningRoutes
} from './utils'
import { buildHierarchyTree } from '@/utils/tree'
import { isUrl, openLink, storageSession, isAllEmpty } from '@pureadmin/utils'

import remainingRouter from './modules/remaining'

/** 自动导入全部静态路由，无需再手动引入！匹配 src/router/modules 目录（任何嵌套级别）中具有 .ts 扩展名的所有文件，除了 remaining.ts 文件
 * 如何匹配所有文件请看：https://github.com/mrmlnc/fast-glob#basic-syntax
 * 如何排除文件请看：https://cn.vitejs.dev/guide/features.html#negative-patterns
 */
const modules: Record<string, any> = import.meta.glob(
  ['./modules/**/*.ts', '!./modules/**/remaining.ts'],
  {
    eager: true
  }
)

/** 原始静态路由（未做任何处理） */
const routes = []

Object.keys(modules).forEach(key => {
  routes.push(modules[key].default)
})

/** 导出处理后的静态路由（三级及以上的路由全部拍成二级） */
export const constantRoutes: Array<RouteRecordRaw> = formatTwoStageRoutes(
  formatFlatteningRoutes(buildHierarchyTree(ascending(routes.flat(Infinity))))
)

/** 用于渲染菜单，保持原始层级 */
export const constantMenus: Array<RouteComponent> = ascending(
  routes.flat(Infinity)
).concat(...remainingRouter)

/** 不参与菜单的路由 */
export const remainingPaths = Object.keys(remainingRouter).map(v => {
  return remainingRouter[v].path
})

/** 创建路由实例 */
export const router: Router = createRouter({
  history: getHistoryMode(import.meta.env.VITE_ROUTER_HISTORY),
  routes: constantRoutes.concat(...(remainingRouter as any)),
  strict: true,
  scrollBehavior(to, from, savedPosition) {
    return new Promise(resolve => {
      if (savedPosition) {
        return savedPosition
      } else {
        if (from.meta.saveSrollTop) {
          const top: number =
            document.documentElement.scrollTop || document.body.scrollTop
          resolve({ left: 0, top })
        }
      }
    })
  }
})

/** 重置路由 */
export function resetRouter() {
  router.getRoutes().forEach(route => {
    const { name, meta } = route
    if (name && router.hasRoute(name) && meta?.backstage) {
      router.removeRoute(name)
      router.options.routes = formatTwoStageRoutes(
        formatFlatteningRoutes(
          buildHierarchyTree(ascending(routes.flat(Infinity)))
        )
      )
    }
  })
  usePermissionStoreHook().clearAllCachePage()
}

/** 路由白名单 */
const whiteList = ['/login']

const { VITE_HIDE_HOME } = import.meta.env

router.beforeEach((to: toRouteType, _from, next) => {
  if (to.meta?.keepAlive) {
    handleAliveRoute(to, 'add')
    // 页面整体刷新和点击标签页刷新
    if (_from.name === undefined || _from.name === 'Redirect') {
      handleAliveRoute(to)
    }
  }
  const userInfo = storageSession().getItem<DataInfo<number>>(sessionKey)
  NProgress.start()
  const externalLink = isUrl(to?.name as string)
  if (!externalLink) {
    to.matched.some(item => {
      if (!item.meta.title) return ''
      const Title = getConfig().Title
      if (Title) document.title = `${transformI18n(item.meta.title)} | ${Title}`
      else document.title = transformI18n(item.meta.title)
    })
  }
  /** 如果已经登录并存在登录信息后不能跳转到路由白名单，而是继续保持在当前页面 */
  function toCorrectRoute() {
    whiteList.includes(to.fullPath) ? next(_from.fullPath) : next()
  }
  if (userInfo) {
    // 无权限跳转403页面
    if (to.meta?.roles && !isOneOfArray(to.meta?.roles, userInfo?.roles)) {
      next({ path: '/error/403' })
    }
    // 开启隐藏首页后在浏览器地址栏手动输入首页welcome路由则跳转到404页面
    if (VITE_HIDE_HOME === 'true' && to.fullPath === '/welcome') {
      next({ path: '/error/404' })
    }
    if (_from?.name) {
      // name为超链接
      if (externalLink) {
        openLink(to?.name as string)
        NProgress.done()
      } else {
        toCorrectRoute()
      }
    } else {
      // 刷新
      if (
        usePermissionStoreHook().wholeMenus.length === 0 &&
        to.path !== '/login'
      ) {
        initRouter().then((router: Router) => {
          if (!useMultiTagsStoreHook().getMultiTagsCache) {
            const { path } = to
            const route = findRouteByPath(
              path,
              router.options.routes[0].children
            )
            getTopMenu(true)
            // query、params模式路由传参数的标签页不在此处处理
            if (route && route.meta?.title) {
              if (isAllEmpty(route.parentId) && route.meta?.backstage) {
                // 此处为动态顶级路由（目录）
                const { path, name, meta } = route.children[0]
                useMultiTagsStoreHook().handleTags('push', {
                  path,
                  name,
                  meta
                })
              } else {
                const { path, name, meta } = route
                useMultiTagsStoreHook().handleTags('push', {
                  path,
                  name,
                  meta
                })
              }
            }
          }
          router.push(to.fullPath)
        })
      }
      toCorrectRoute()
    }
  } else {
    if (to.path !== '/login') {
      if (whiteList.indexOf(to.path) !== -1) {
        next()
      } else {
        next({ path: '/login' })
      }
    } else {
      next()
    }
  }
})

router.afterEach(() => {
  NProgress.done()
})

export default router
